<template>
	<div class="wrapper">
		<u-popup class="popup" v-model="buyMask" :height="setup.height" closeable :mode="setup.mode" :border-radius="setup.radius" @close="closeMask()">
			<!-- 商品 -->
			<view class="goods-box bottom">
				<view class="goods-header">
					<view class="goods-img">
						<u-image width="200rpx" border-radius="20" class="uimage" height="200rpx" :src="selectedSpecImg ? selectedSpecImg : goodsDetail.thumbnail"></u-image>
					</view>
					<view class="goods-skus">
						<!-- 有活动商品价格 -->
						<view class="goods-price" v-if="goodsDetail.promotionPrice && ((isGroup && buyType === 'PINTUAN') || !isGroup)">
							<span v-if="goodsDetail.promotionPrice && !pointDetail">
								￥
								<span class="goods-price-promotionShow goods-price-bigshow">{{ $options.filters.goodsFormatPrice(goodsDetail.promotionPrice)[0] }}</span>
								.{{ $options.filters.goodsFormatPrice(goodsDetail.promotionPrice)[1] }}
							</span>
							<span v-if="pointDetail.points">
								<span class="goods-price-promotionShow goods-price-bigshow">{{ pointDetail.points }}</span>
								积分
							</span>
							<div class="promotion-box">
								￥
								<span class="goods-price-bigshow">{{ $options.filters.goodsFormatPrice(goodsDetail.price)[0] }}</span>
								.{{ $options.filters.goodsFormatPrice(goodsDetail.price)[1] }}
							</div>
						</view>
						<!-- 正常商品的价格 -->
						<view v-else>
							<!-- 批发价格 -->
							<div class="price-row flex" v-if="goodsDetail.salesModel === 'WHOLESALE'">
								<div class="goods-price" v-for="(item, index) in wholesaleList" :key="index">
									<span>
										￥
										<span class="goods-price-bigshow">{{ $options.filters.goodsFormatPrice(item.price)[0] }}</span>
										.{{ $options.filters.goodsFormatPrice(item.price)[1] }}
									</span>
									<span class="wholesale-item">{{ item.num }}{{ goodsDetail.goodsUnit }}</span>
								</div>
							</div>
							<div class="goods-price" v-else>
								<span>
									￥
									<span class="goods-price-bigshow">{{ $options.filters.goodsFormatPrice(goodsDetail.price)[0] }}</span>
									.{{ $options.filters.goodsFormatPrice(goodsDetail.price)[1] }}
								</span>
							</div>
						</view>
						<view class="goods-check-skus">
							已选
							<span class="goods-check-skus-name">
								{{ selectName }}
								<span>，{{ num }}个</span>
							</span>
						</view>
						<view class="goods-check-skus">
							库存
							<span class="goods-check-skus-name">
								<span>{{ goodsDetail.quantity }}</span>
							</span>
						</view>
					</view>
				</view>
				<!-- 商品信息 -->
				<scroll-view class="goods-skus-box" :scroll-y="true">
					<!-- 规格 -->
					<view class="goods-skus-view" :key="specIndex" v-for="(spec, specIndex) in formatList">
						<view class="skus-view-list">
							<view class="view-class-title">{{ spec.name }}</view>

							<!-- 正常逻辑 循环出sku -->
							<view
								v-if="!parentOrder"
								:class="{ active: spec_val.value == currentSelected[specIndex] }"
								class="skus-view-item"
								v-for="(spec_val, spec_index) in spec.values"
								:key="spec_index"
								@click="handleClickSpec(spec, specIndex, spec_val)"
							>
								{{ spec_val.value }}
							</view>

							<!-- 拼团购买，仅筛选出当前拼团类型商品 -->
							<view
								v-if="parentOrder && spec_val.skuId == goodsDetail.id"
								:class="{ active: spec_val.value == currentSelected[specIndex] }"
								class="skus-view-item"
								v-for="(spec_val, spec_index) in spec.values"
								:key="spec_index"
								@click="handleClickSpec(spec, specIndex, spec_val)"
							>
								{{ spec_val.value }}
							</view>
						</view>
					</view>
					<!-- 数量 -->
					<view class="goods-skus-number flex flex-a-c flex-j-sb">
						<view class="view-class-title">数量</view>

						<u-input class="view-class-input" input-align="right" v-model="num" type="number" @blur="numCheck()" />
					</view>
				</scroll-view>
				<!-- 按钮 -->
				<view class="btns">
					<view class="box-btn card" v-if="buyType != 'PINTUAN' && goodsDetail.goodsType != 'VIRTUAL_GOODS'" @click="addToCartOrBuy('cart')">加入购物车</view>
					<view class="box-btn buy" @click="addToCartOrBuy('buy')">立即购买</view>
				</view>
			</view>
		</u-popup>
	</div>
</template>
<script>
import * as API_trade from '@/api/trade.js';
import setup from './popup';

export default {
	data() {
		return {
			setup,
			num: this.wholesaleList && this.wholesaleList.length > 0 ? this.wholesaleList[0].num : 1,

			selectName: '', //选中商品的昵称
			selectSkuList: '', //选中商铺sku,
			selectedSpecImg: '', //选中的图片路径
			buyType: '', //用于存储促销，拼团等活动类型
			parentOrder: '', //父级拼团活动的数据 - 如果是团员则有数据
			formatList: [],
			currentSelected: [],
			skuList: '',
			isClose: false //是否可以点击遮罩关闭
		};
	},
	props: {
		wholesaleList: {
			type: null,
			default: false
		},
		buyMask: {
			type: Boolean,
			default: false
		},
		isGroup: {
			type: Boolean,
			default: false
		},
		goodsDetail: {
			default: '',
			type: null
		},
		selectedSku: {
			default: '',
			type: null
		},
		goodsSpec: {
			default: '',
			type: null
		},
		addr: {
			default: '',
			type: null
		},
		pointDetail: {
			default: '',
			type: null
		}
	},
	computed: {
		wholesalePrice(key) {
			return this.wholesaleList.length
				? this.wholesaleList.map(item => {
						return item.price;
				  })
				: [];
		},
		wholesaleNum(key) {
			return this.wholesaleList.length
				? this.wholesaleList.map(item => {
						return item.num;
				  })
				: [];
		}
	},
	watch: {
		num(val) {
			
			val == 0 ? this.num = 1 : ''
			if (val) {
				
				//超过库存后修改回库存
				if (val > this.goodsDetail.quantity) {
					this.$nextTick(function() {
						this.num = this.goodsDetail.quantity;
					});
				}
			}
		},
		buyType: {
			handler(val) {
				if (val) {
					this.buyType = val;
				}
			},
			immediate: true
		},
		selectSkuList: {
			handler(val, oldval) {
				this.$emit('changed', val);
			},
			deep: true
		}
	},

	methods: {
		numCheck(val) {
			if (this.wholesaleList && this.wholesaleList.length > 0) {
				if (this.num <= this.wholesaleList[0].num) {
					uni.showToast({
						title: '批发商品购买数量不能小于起批数量!',
						duration: 2000,
						icon: 'none'
					});
					this.num = this.wholesaleList[0].num;
				}
			}
		},
		closeMask() {
			this.$emit('closeBuy', false);
		},
		
		/**点击规格 */
		handleClickSpec(val, index, specValue) {
			this.currentSelected[index] = specValue.value;
			let selectedSkuId = this.goodsSpec.find(i => {
				let matched = true;
				let specValues = i.specValues.filter(j => j.specName !== 'images');
				for (let n = 0; n < specValues.length; n++) {
					if (specValues[n].specValue !== this.currentSelected[n]) {
						matched = false;
						return;
					}
				}
				if (matched) {
					return i;
				}
			});
			if (selectedSkuId?.skuId) {
				this.$set(this.currentSelected, index, specValue.value);
				this.selectSkuList = {
					spec: {
						specName: val.name,
						specValue: specValue.value
					},
					data: this.goodsDetail
				};
				this.selectName = specValue.value;

				this.$emit('handleClickSku', {
					skuId: selectedSkuId.skuId,
					goodsId: this.goodsDetail.goodsId
				});
			} else {
				uni.showToast({
					title: '暂无该商品!',
					duration: 2000,
					icon: 'none'
				});
			}
		},

		/**
		 * 直接购买
		 */
		buy(data) {
			API_trade.addToCart(data).then(res => {
				if (res.data.success) {
					uni.navigateTo({
						url: `/pages/order/fillorder?way=${data.cartType}&addr=${''}&parentOrder=${encodeURIComponent(JSON.stringify(this.parentOrder))}`
					});
				}
			});
		},

		/**
		 * 添加到购物车或购买
		 */
		addToCartOrBuy(val) {
			if (!this.selectSkuList) {
				uni.showToast({
					title: '请选择规格商品',
					icon: 'none'
				});
				return;
			}
			let data = {
				skuId: this.goodsDetail.id,
				num: this.num
			};

			if (val == 'cart') {
				API_trade.addToCart(data).then(res => {
					if (res.data.code == 200) {
						uni.showToast({
							title: '商品已添加到购物车',
							icon: 'none'
						});

						this.$emit('queryCart');
						this.closeMask();
					}
				});
			} else {
				// 判断是否拼团商品
				if (this.buyType) {
					data.cartType = 'PINTUAN';
				} else if (this.goodsDetail.goodsType == 'VIRTUAL_GOODS') {
					data.cartType = 'VIRTUAL';
				} else {
					data.cartType = 'BUY_NOW';
				}

				API_trade.addToCart(data).then(res => {
					if (res.data.code == 200) {
						uni.navigateTo({
							url: `/pages/order/fillorder?way=${data.cartType}&addr=${this.addr.id || ''}&parentOrder=${encodeURIComponent(JSON.stringify(this.parentOrder))}`
						});
					}
				});
			}
		},
		formatSku(list) {
			// 格式化数据
			let arr = [{}];

			if (!Array.isArray(list)) {
				return false;
			}
			list.forEach((item, index) => {
				item.specValues.forEach((spec, specIndex) => {
					let name = spec.specName;
					let values = {
						value: spec.specValue,
						quantity: item.quantity,
						skuId: item.skuId
					};
					if (name === 'images') {
						return;
					}

					arr.forEach((arrItem, arrIndex) => {
						if (
							arrItem.name == name &&
							arrItem.values &&
							!arrItem.values.find(i => {
								return i.value === values.value;
							})
						) {
							arrItem.values.push(values);
						}

						let keys = arr.map(key => {
							return key.name;
						});
						if (!keys.includes(name)) {
							arr.push({
								name: name,
								values: [values]
							});
						}
					});
				});
			});

			arr.shift();
			this.formatList = arr;

			list.forEach(item => {
				// 默认选中
				if (item.skuId === this.goodsDetail.id) {
					item.specValues
						.filter(i => i.specName !== 'images')
						.forEach((value, _index) => {
							this.currentSelected[_index] = value.specValue;

							this.selectName = value.specValue;

							this.selectSkuList = {
								spec: value,
								data: this.goodsDetail
							};
						});
				}
			});

			this.skuList = list;
			// console.log(" this.skuList", this.skuList)
		}
	},

	mounted() {
		this.formatSku(this.goodsSpec);
	}
};
</script>
<style lang="scss" scoped>
@import './popup.scss';

.price-row {
	text-align: center;
}

.buy {
	background-image: linear-gradient(135deg, #ffba0d, #ffc30d 69%, #ffcf0d);
	box-shadow: 0 2px 6px 0 rgba(255, 65, 66, 0.2);
}

.card {
	background-image: linear-gradient(135deg, #f2140c, #f2270c 70%, #f24d0c);
	box-shadow: 0 2px 6px 0 rgba(255, 65, 66, 0.2);
}

/deep/.u-icon-plus,
.u-icon-minus,
.u-icon-disabled {
	height: 30rpx !important;
	background: #fff !important;
}

.goods-skus-number {
	justify-content: space-between;
	display: flex;

	> .view-class-title {
		flex: 8;
	}

	> .view-class-input {
		flex: 1;
	}
}

/deep/ .uni-scroll-view {
	overflow: hidden !important;
}

.active {
	background: $price-light-color !important;
	border: 2rpx solid $price-color;
	font-weight: bold;
	color: $price-color !important;
	box-sizing: border-box;
}

.goods-skus-box {
	overflow-y: auto;
	height: 610rpx;
	// #ifdef MP-WEIXIN
	height: 570rpx;
	// #endif
	margin-bottom: 10rpx;
}

.goods-skus-view {
	overflow: hidden;

	.skus-view-list {
		> .skus-view-item {
			flex: 1;
			padding: 0 36rpx;

			overflow: hidden;
			height: 60rpx;
			line-height: 60rpx;
			float: left;
			text-align: center;
			margin-left: 24rpx;
			margin-bottom: 20rpx;
			font-size: 22rpx;
			color: #262626;
			background: #f2f2f2;
			border-radius: 30rpx;
		}
	}
}

.wholesale-item {
	color: #999 !important;
	font-size: 24rpx;
	margin: 0 20rpx;
	display: flex;
	justify-content: center;
}

.goods-header {
	height: 200rpx;
	display: flex;
	align-items: center;
	margin-bottom: 36rpx;
}

.goods-box {
	padding: 50rpx 36rpx 0 36rpx;
}

.goods-skus {
	padding: 0 20rpx;
}

.goods-price {
	color: $price-color;
	line-height: 80rpx;
	margin-right: 20rpx;

	> * {
		color: $price-color;
		line-height: 80rpx;
	}
}

.promotion-box {
	line-height: 1;
	display: flex;
	align-items: center;
	text-decoration: line-through;
	color: #999;
	margin-left: 10rpx;

	/deep/ span {
		font-size: 30rpx;
	}
}

.promotion {
	font-size: 30rpx;
}

.goods-price-promotionShow {
	font-size: 48rpx;
}

.goods-check-skus {
	font-size: 24rpx;
	color: #999;

	> .goods-check-skus-name {
		margin-left: 4rpx;
	}

	> span {
		color: #333;
	}
}
</style>
